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ClinicalTrials.gov public records Last synced Oct 27, 2026, 6:53 AM EDT

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Showing 1–24 of 84 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: 21-Hydroxylase Deficiency Clear all
Not listed No phase listed Observational Accepts healthy volunteers

Role of the Protein Osteoprotegerin in the Bone Health of Women With Congenital Adrenal Hyperplasia

NCT00694525
View directory record Official record
Conditions
Adrenal Hyperplasia, Congenital
Interventions
Not listed
Lead sponsor
Office of Rare Diseases (ORD)
NIH
Eligibility
20 Years to 35 Years · Female only
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 2, 2009 · Synced Oct 27, 2026, 6:53 AM EDT
Completed Not applicable Interventional

Research Study for Children With Salt Wasting Congenital Adrenal Hyperplasia

NCT00529841
View directory record Official record
Conditions
Adrenal Hyperplasia, Congenital
Interventions
Hydrocortisone sodium acetate
Drug
Lead sponsor
Baylor College of Medicine
Other
Eligibility
3 Years to 18 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 14, 2015 · Synced Oct 27, 2026, 6:53 AM EDT
Active, not recruiting Phase 3 Interventional Results available

Global Safety and Efficacy Registration Study of Crinecerfont in Pediatric Participants With Classic Congenital Adrenal Hyperplasia (CAHtalyst Pediatric Study)

NCT04806451
View directory record Official record
Conditions
Congenital Adrenal Hyperplasia
Interventions
Crinecerfont, Placebo
Drug
Lead sponsor
Neurocrine Biosciences
Industry
Eligibility
2 Years to 17 Years
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2027
U.S. locations
22
States / cities
Birmingham, Alabama • Los Angeles, California • Orange, California + 19 more
Source: ClinicalTrials.gov public record
Updated Feb 5, 2025 · Synced Oct 27, 2026, 6:53 AM EDT
Completed Phase 3 Interventional Results available

Comparison of Chronocort Versus Standard Hydrocortisone Replacement Therapy in Participants Aged 16 Years and Over With Congenital Adrenal Hyperplasia

NCT05063994
View directory record Official record
Conditions
Congenital Adrenal Hyperplasia
Interventions
Chronocort, Cortef, Placebo
Drug · Other
Lead sponsor
Neurocrine UK Limited
Industry
Eligibility
16 Years and older
Enrollment
55 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2024
U.S. locations
11
States / cities
Los Angeles, California • Orange, California • Jacksonville, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Oct 2, 2026 · Synced Oct 27, 2026, 6:53 AM EDT
Completed No phase listed Observational

PCOS Twin Study - Environmental Factors in the Development of Polycystic Ovary Syndrome, Phase 2

NCT00444288
View directory record Official record
Conditions
Polycystic Ovary Syndrome
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years and older · Female only
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2010
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 2, 2017 · Synced Oct 27, 2026, 6:53 AM EDT
Completed Not applicable Interventional Results available

Effect of Metformin on Sensitivity of the GnRH Pulse Generator to Suppression by Estradiol and Progesterone

NCT01427595
View directory record Official record
Conditions
Polycystic Ovary Syndrome, Hyperandrogenism
Interventions
Metformin, Progesterone, estrace
Drug
Lead sponsor
University of Virginia
Other
Eligibility
10 Years to 17 Years · Female only
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2015
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 8, 2021 · Synced Oct 27, 2026, 6:53 AM EDT
Completed Phase 2 Interventional Results available

Dexamethasone Treatment of Congenital Adrenal Hyperplasia

NCT00621985
View directory record Official record
Conditions
Adrenal Hyperplasia, Congenital
Interventions
dexamethasone, Hydrocortisone
Drug
Lead sponsor
Boston Children's Hospital
Other
Eligibility
2 Years to 9 Years
Enrollment
5 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 23, 2011 · Synced Oct 27, 2026, 6:53 AM EDT
Completed Phase 1 Interventional

A Study Examining Doses of Abiraterone Acetate in Adult Women With 21-Hydroxylase Deficiency

NCT01495910
View directory record Official record
Conditions
21-hydroxylase Deficiency
Interventions
Abiraterone acetate
Drug
Lead sponsor
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Industry
Eligibility
18 Years and older · Female only
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
3
States / cities
Chicago, Illinois • Ann Arbor, Michigan • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Feb 28, 2014 · Synced Oct 27, 2026, 6:53 AM EDT
Not listed Early Phase 1 Interventional

Does Treatment of Androgen Excess Using Spironolactone Improve Ovulatory Rates in Girls With Androgen Excess?

NCT04075149
View directory record Official record
Conditions
Polycystic Ovary Syndrome, Puberty Disorders, Ovulation Disorder
Interventions
Spironolactone
Drug
Lead sponsor
University of Virginia
Other
Eligibility
13 Years to 19 Years · Female only
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2024
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated Oct 27, 2023 · Synced Oct 27, 2026, 6:53 AM EDT
Completed Phase 2 Interventional Results available

A Study of ATR-101 for the Treatment of Congenital Adrenal Hyperplasia

NCT02804178
View directory record Official record
Conditions
Congenital Adrenal Hyperplasia
Interventions
ATR-101
Drug
Lead sponsor
Millendo Therapeutics, Inc.
Industry
Eligibility
18 Years to 80 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
6
States / cities
Baltimore, Maryland • Bethesda, Maryland • Ann Arbor, Michigan + 3 more
Source: ClinicalTrials.gov public record
Updated Mar 10, 2021 · Synced Oct 27, 2026, 6:53 AM EDT
Completed Phase 2 Interventional Results available

Safety, Tolerability, Pharmacokinetics, and Pharmacodynamics of NBI-74788 (Crinecerfont) in Pediatric Participants With Congenital Adrenal Hyperplasia

NCT04045145
View directory record Official record
Conditions
CAH - Congenital Adrenal Hyperplasia
Interventions
Crinecerfont
Drug
Lead sponsor
Neurocrine Biosciences
Industry
Eligibility
14 Years to 17 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2021
U.S. locations
6
States / cities
San Diego, California • Aurora, Colorado • Ann Arbor, Michigan + 3 more
Source: ClinicalTrials.gov public record
Updated Jul 18, 2024 · Synced Oct 27, 2026, 6:53 AM EDT
Not yet recruiting No phase listed Observational Accepts healthy volunteers

Development of Healthcare Transition for Patients With Congenital Adrenal Hyperplasia

NCT07611786
View directory record Official record
Conditions
Congenital Adrenal Hyperplasia
Interventions
exposure to healthcare transition protocol
Other
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
16 Years and older
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2027 – 2029
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Oct 14, 2026 · Synced Oct 27, 2026, 6:53 AM EDT
Terminated No phase listed Observational

Insulin Resistance Before and During Pregnancy in Women With Polycystic Ovary Syndrome

NCT01475565
View directory record Official record
Conditions
Polycystic Ovary Syndrome, Insulin Resistance, Insulin Sensitivity, Obesity, Pregnancy
Interventions
Not listed
Lead sponsor
Virginia Commonwealth University
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Richmond, Virginia
Source: ClinicalTrials.gov public record
Updated Dec 14, 2015 · Synced Oct 27, 2026, 6:53 AM EDT
Recruiting Phase 3 Interventional

A Study to Evaluate Atumelnant in Adults With Congenital Adrenal Hyperplasia

NCT07144163
View directory record Official record
Conditions
Congenital Adrenal Hyperplasia, Classic Congenital Adrenal Hyperplasia
Interventions
Atumelnant, Placebo
Drug
Lead sponsor
Crinetics Pharmaceuticals Inc.
Industry
Eligibility
18 Years to 74 Years
Enrollment
150 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
13
States / cities
Los Angeles, California • Aurora, Colorado • Gainesville, Florida + 10 more
Source: ClinicalTrials.gov public record
Updated Oct 16, 2026 · Synced Oct 27, 2026, 6:53 AM EDT
Recruiting Phase 1Phase 2 Interventional

A Trial of Lu AG13909 in Participants With Congenital Adrenal Hyperplasia

NCT05669950
View directory record Official record
Conditions
Congenital Adrenal Hyperplasia
Interventions
Lu AG13909
Drug
Lead sponsor
H. Lundbeck A/S
Industry
Eligibility
18 Years to 70 Years
Enrollment
42 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Mar 9, 2026 · Synced Oct 27, 2026, 6:53 AM EDT
Active, not recruiting Phase 3 Interventional Results available

Global Safety and Efficacy Registration Study of Crinecerfont for Congenital Adrenal Hyperplasia

NCT04490915
View directory record Official record
Conditions
Congenital Adrenal Hyperplasia
Interventions
Crinecerfont, Placebo
Drug
Lead sponsor
Neurocrine Biosciences
Industry
Eligibility
18 Years and older
Enrollment
182 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2027
U.S. locations
20
States / cities
Los Angeles, California • San Diego, California • San Francisco, California + 17 more
Source: ClinicalTrials.gov public record
Updated May 11, 2026 · Synced Oct 27, 2026, 6:53 AM EDT
Completed Phase 2 Interventional

Inositol Supplementation to Treat PCOS (INSUPP-PCOS)

NCT03864068
View directory record Official record
Conditions
Polycystic Ovary Syndrome, Anovulation, Hyperandrogenism, Insulin Resistance, Glucose Intolerance, Metabolic Complication
Interventions
Placebo, Inositol
Other · Drug
Lead sponsor
Milton S. Hershey Medical Center
Other
Eligibility
18 Years to 45 Years · Female only
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
2
States / cities
Hershey, Pennsylvania • Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jan 7, 2026 · Synced Oct 27, 2026, 6:53 AM EDT
Completed Phase 2 Interventional Results available

Evaluate the Safety, Efficacy, and Pharmacokinetics of CRN04894 in Participants With Congenital Adrenal Hyperplasia (TouCAHn)

NCT05907291
View directory record Official record
Conditions
Congenital Adrenal Hyperplasia, Classic Congenital Adrenal Hyperplasia
Interventions
atumelnant (CRN04894)
Drug
Lead sponsor
Crinetics Pharmaceuticals Inc.
Industry
Eligibility
16 Years to 75 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
8
States / cities
Pasadena, California • Ann Arbor, Michigan • Minneapolis, Minnesota + 5 more
Source: ClinicalTrials.gov public record
Updated Sep 10, 2026 · Synced Oct 27, 2026, 6:53 AM EDT
Completed No phase listed Observational

A Study to Determine Eligibility for CAH-301 (A Study of Gene Therapy for Classic Congenital Adrenal Hyperplasia (CAH) [NCT04783181])

NCT05101902
View directory record Official record
Conditions
Congenital Adrenal Hyperplasia
Interventions
Pre-Screening
Other
Lead sponsor
Adrenas Therapeutics Inc
Industry
Eligibility
18 Years and older
Enrollment
65 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 19, 2024 · Synced Oct 27, 2026, 6:53 AM EDT
Completed Phase 2 Interventional Results available

Study to Evaluate the Safety and Efficacy of SPR001 in Subjects With Classic Congenital Adrenal Hyperplasia

NCT03687242
View directory record Official record
Conditions
Congenital Adrenal Hyperplasia, CAH - Congenital Adrenal Hyperplasia, CAH - 21-Hydroxylase Deficiency
Interventions
SPR001
Drug
Lead sponsor
Spruce Biosciences
Industry
Eligibility
18 Years and older
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
8
States / cities
Orange, California • San Diego, California • Atlanta, Georgia + 5 more
Source: ClinicalTrials.gov public record
Updated Apr 1, 2025 · Synced Oct 27, 2026, 6:53 AM EDT
Completed Phase 2 Interventional Results available

Study of SPR001 in Adults With Classic Congenital Adrenal Hyperplasia

NCT03257462
View directory record Official record
Conditions
Congenital Adrenal Hyperplasia, CAH - Congenital Adrenal Hyperplasia
Interventions
SPR001
Drug
Lead sponsor
Spruce Biosciences
Industry
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
9
States / cities
Orange, California • San Diego, California • Melbourne, Florida + 6 more
Source: ClinicalTrials.gov public record
Updated Oct 22, 2025 · Synced Oct 27, 2026, 6:53 AM EDT
Completed Phase 3 Interventional

Long-term Safety Study of Chronocort in the Treatment of Participants With Congenital Adrenal Hyperplasia

NCT05299554
View directory record Official record
Conditions
Congenital Adrenal Hyperplasia
Interventions
Chronocort
Drug
Lead sponsor
Immedica Pharma AB
Industry
Eligibility
16 Years and older
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
11
States / cities
Los Angeles, California • Orange, California • Jacksonville, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Jun 18, 2026 · Synced Oct 27, 2026, 6:53 AM EDT
Recruiting Phase 2 Interventional

Impact of 1 mg Osilodrostat Therapy on Mild Autonomous Cortisol Secretion (MACS)

NCT07104812
View directory record Official record
Conditions
Mild Autonomous Cortisol Secretion, Autonomous Cortisol Secretion (ACS)
Interventions
Osilodrostat 1 MG
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Feb 11, 2026 · Synced Oct 27, 2026, 6:53 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

The Effect of Metformin Added to Clomiphene Citrate on Pregnancy Rates in Hyperandrogenic, Chronic Oligoovulatory or Anovulatory Women

NCT00413179
View directory record Official record
Conditions
Polycystic Ovary Syndrome, Anovulation, Oligoovulation, Infertility, Hyperandrogenism
Interventions
Metformin, Clomiphene citrate, Placebo
Drug
Lead sponsor
59th Medical Wing
Federal
Eligibility
18 Years to 40 Years · Female only
Enrollment
56 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1997 – 2003
U.S. locations
1
States / cities
Lackland Air Force Base, Texas
Source: ClinicalTrials.gov public record
Updated Dec 19, 2006 · Synced Oct 27, 2026, 6:53 AM EDT